Oh shit, second paragraph and it hasn't gotten any better...
"Now, almost 50 years later, not much has changed. There are no countries and no governments. A few communities managed to survive living a simple life of farmers and hunters.
You are (First Name). Your father was one of the few people who "always had seen it comming". He was better prepared than most other people. He had a secure place, hidden in an abondened mountain area. He had stored supplies and equipment for many years to come.
But now he is dead and you are all alone. Your mother died when you were born. Your father did his best to raise you to become a strong and independent man, armed with all necessary skills to survive in a harsh environment.
Basically, you have everything to live on your own, but you are lonely. Even though you are socially unexperienced due to the lack of company, you realize that you are the born leader. With every day passing by, you are more and more driven by the thought to explore the world around you. You want to find other humans, build a society, create something lasting, reproduce."
First pet peeve, consistent formatting. There is a break and a blank space breaking this up into three blocks of text, but in the middle of the second (after '...many years to come.') there is another break, but without the extra space to separate it into four blocks. Pick one or the other. Either eliminate the break and make it a single paragraph, or commit to the break and give it a gap like the other two. Whatever you choose to do, make sure you consistently apply that standard going forward, otherwise it just looks very sloppy.
"Now, almost 50 years later, not much has changed. There are no countries and no governments. A few communities managed to survive living a simple life of farmers and hunters."
Really? Fifty years, and there wasn't a single Steve who put their foot down and declared their neighborhood to be Stevelandia?
"You are (First Name). Your father was one of the few people who "always had seen it comming". He was better prepared than most other people. He had a secure place, hidden in an abondened mountain area. He had stored supplies and equipment for many years to come."
Coming. Abandoned.
So the protagonist grew up with a parent or parents who were preppers. That is definitely gonna color the outlook of their children. Might want to actually read up on the subject, seeing as how it's easily one of the most influential aspects of the protagonist's formative years.
"But now he is dead and you are all alone. Your mother died when you were born. Your father did his best to raise you to become a strong and independent man, armed with all necessary skills to survive in a harsh environment."
Well, how did the father die? Old age? Accident? Eaten alive by giant mutated cockroaches? The mother gets a blurb, why not the father?
"Basically, you have everything to live on your own, but you are lonely. Even though you are socially unexperienced due to the lack of company, you realize that you are the born leader. With every day passing by, you are more and more driven by the thought to explore the world around you. You want to find other humans, build a society, create something lasting, reproduce."
Cool. Thanks for eliminating all tension from survival. You just happen to live in an entirely self-sufficient and self-maintaining underground shelter or something? Sounds like you have 'everything'.
That second sentence is pure unadulterated bullshit. Leaders aren't born, they're made; and they're not made in a vacuum. A leader who has not been tested is not a good leader either.
How are you driven by the thought to explore? Unless this is a Fallout-like situation and you're trapped in a Vault and unable to leave, what is stopped you from just doing it? Why sell it like you are obsessing over your thoughts, when placating that curiosity is as simple as opening up the door and stepping out on your own? Something you can presumably do at any time.